Metal deforming – By use of roller or roller-like tool-element – Comprising tool movable relative to stationary work-portion...
Patent
1984-12-07
1986-09-02
Husar, Francis S.
Metal deforming
By use of roller or roller-like tool-element
Comprising tool movable relative to stationary work-portion...
72150, 72219, 72398, 72466, B21D 702
Patent
active
046088490
ABSTRACT:
Apparatus for bending a light gauge, profiled, metal panel to a curved shape, including an anvil mounted on a frame and having a part-annular surface, an arm mounted for pivotal movement about the center of curvature of the part-annular surface, a roller carried by the arm at a position spaced from the center and rotatable about its own axis, so that it can roll in an arc adjacent the annular surface, a mandrel carried by the arm for movement therewith at a location between the roller and surface, the mandrel comprising a plurality of blocks each having its length parallel to the roller axis, the blocks being juxtaposed in side-by-side relation and each shaped to conform to the profile of the panel to be bent, and at least one flexible element passing through all of the blocks and loosely holding them in juxtaposed relation, but allowing slight relative movement whereby, in use, with the mandrel engaged in the profile of a panel to be bent, the mandrel acts as a shape retaining member for the profiled panel, the mandrel moving relative to the part-annular surface.
REFERENCES:
patent: 1136252 (1915-04-01), Meier
patent: 1534314 (1925-04-01), Heintz
patent: 2044322 (1936-06-01), Oliver et al.
patent: 2108271 (1938-02-01), Samuel
patent: 3452571 (1969-07-01), Sassak
patent: 4123930 (1978-11-01), Hill et al.
Griffin Jorji M.
Hunter Douglas International N.V.
Husar Francis S.
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